吡咯, 噻酚和呋喃的情况就是这样.Such is the case in pyrrole, thiophene, and furan.研究结果表明关键步骤为原料 4- 甲基 -2, 3- 呋喃二酮的合成.It'shows that the key step is the synthesis of 4 - methyl - dihydro - furan - 2 , 3 - dione.用糠醇和糠醛缩聚制备了新型呋喃树脂.A n...
四名男子被判扰乱治安罪名成立。Four men were found guilty of breach of the peace.地方法官宣判林先生扰乱治安罪名不成立。Mr Ling was acquitted of disorderly behaviour by magistrates.他放肆的举动扰乱了全班的秩序。His uncontrolled behavior disturbed the entire class....
Blooming of Bacteria and Algae: Possible Killer of Devonian Frasnian - Famennian Mass Extinction?菌藻类繁盛: 晚泥盆世大灭绝的疑凶?His life, living 80 years, saying 300 games, the measureless Famennian, Watanabe measureless sentient bei...
He could diagnose an engine problem simply by listening.他仅靠听就能判断发动机出了什么问题。The test is used to diagnose a variety of diseases.此项化验可用于诊断多种疾病。What more will you want to know to diagnose this problem?要弄清这个问题,你还需要知道些什么?...